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-   -   Building a cabnet for a pair of JBL 2214's (http://www.diyaudio.com/forums/subwoofers/219777-building-cabnet-pair-jbl-2214s.html)

jayhue 15th September 2012 04:05 PM

Building a cabnet for a pair of JBL 2214's
 
Starting a project of bringing my JBL 12" 2214H's back to life in my home system. What size and type of cabinet to build? Of course, my goal is going as low as I can go. Room size, is not a factor they can be big if they need to be. Using a receiver a Pioneer DSX-914 at 110 watts. Thinking to myself, "just go to the experts for this". These are just my numbers, that I have. Thanks for the help.

JBL 2214H PMAX=200 RE=5.6
FS=23 XMAX=.26 LE=1.3
QTS=.24 DIA=10.2
VAS=7.9 QMS=10.5
EFF=1.1% QES=.25

bjorno 16th September 2012 01:05 AM

1 Attachment(s)
Hi,

Here is a suggestion:

b:)

FairfaxStu 16th September 2012 03:04 AM

That looks amazing. What are the actual dimensions for the box and ports?

bjorno 16th September 2012 11:51 PM

1 Attachment(s)
Quote:

Originally Posted by FairfaxStu (Post 3166658)
That looks amazing. What are the actual dimensions for the box and ports?

Hi jayhue,

Have a look at the submitted picture and you will find a few of the dimensions needed. I didn't exactly know the driver frame width (calculated with 31 cm) or the needed depth for magnet clearance when I made the simulation.

I think if you start with an internal box height of( L23 + 2 x 31 cm+ 1.8cm(Choose the baffle thickness = 2 x 1.8cm) + the internal box width = 31 cm and a L23= 223.25 cm:

The total L would be slightly lower than 450 cm.( When damping material is added to the box: The effective length of the air-ways are 'virtual' longer than if physically measured.)

b:)

FairfaxStu 17th September 2012 01:53 AM

Quote:

Originally Posted by bjorno (Post 3167632)
I think if you start with an internal box height of( L23 + 2 x 31 cm+ 1.8cm(Choose the baffle thickness = 2 x 1.8cm) + the internal box width = 31 cm and a L23= 223.25 cm:
b:)

Woa, you just blew my head off so please educate me. What is L23? If Jay can provide the external dimensions including mounting hole size and depth we should be able to bang this one out.

-Stu

bjorno 17th September 2012 02:06 PM

Quote:

Originally Posted by FairfaxStu (Post 3167718)
Woa, you just blew my head off so please educate me. What is L23? If Jay can provide the external dimensions including mounting hole size and depth we should be able to bang this one out.

-Stu

Hi Stu,

You will find L23 to be the 'in enclosure' the inter driver section distance between the rear to the front side if you download and enter the numbers given into the free Hornresp program.

b:)

jayhue 18th September 2012 02:37 AM

I didn't exactly know the driver frame width (calculated with 31 cm) or the needed depth for magnet clearance when I made the simulation.

Driver dimensions: Full Dia. 31.11cm, Inside Dia. 29.84cm, Depth 14.60cm

jayhue 23rd September 2012 01:01 AM

The new hornresp program has different input par. than the one showing. What is this type of enclosure called. The internal length of the baffles? Spacing of the baffles inside the enclosure. Is there a page for the wood cuts? I can build this with just a little more help. Thanks. jayhue

jayhue 27th September 2012 09:31 PM

bump
 
Just a few more measurements and I can start building. Length of the baffles? Dying to start this build. Please, Please, Please. thanks.

bjorno 28th September 2012 12:42 AM

1 Attachment(s)
Quote:

Originally Posted by jayhue (Post 3181634)
Just a few more measurements and I can start building. Length of the baffles? Dying to start this build. Please, Please, Please. thanks.

Hi jayhue,

Sorry for being late. :(
For the moment: Here's a revised picture with some added dimensions to study:

b:)


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